Metal-resin composite member for tire, and tire

Abstract

A metal-resin composite member for a tire, comprising plural metal cords that are positioned alongside each other, an adhesive layer that is disposed on the metal cords, and a resin layer that is disposed on the adhesive layer, the metal-resin composite member satisfying at least one of the following (1) or (2): (1) the adhesive layer is independently disposed on each of the plural metal cords, and at least one of the adhesive layers has a cross-sectional shape that has a projecting portion; (2) the adhesive layer is integrally disposed on all of the plural metal cords, and a region consisting of the metal cords and the adhesive layer has a cross-sectional shape that has, between the metal cords, a portion that is narrower in width than a portion at which the metal cords are disposed.

1 . A metal-resin composite member for a tire, comprising plural metal cords that are positioned alongside each other, an adhesive layer that is disposed on the metal cords, and a resin layer that is disposed on the adhesive layer, the metal-resin composite member satisfying at least one of the following (1) or (2):
 (1) the adhesive layer is independently disposed on each of the plural metal cords, and when a cross-section of the metal-resin composite member is viewed perpendicularly to a length direction of the metal cords, at least one of the adhesive layers has a cross-sectional shape that has a projecting portion that projects toward a metal cord that is adjacent to a metal cord on which the adhesive layer is disposed;   (2) the adhesive layer is integrally disposed on all of the plural metal cords, and when a cross-section of the metal-resin composite member is viewed perpendicularly to a length direction of the metal cords, a region consisting of the metal cords and the adhesive layer has a cross-sectional shape that has, between the metal cords, a portion that is narrower in width than a portion at which the metal cords are disposed.   
     
     
         2 . The metal-resin composite member for a tire according to  claim 1 , wherein the metal-resin composite member satisfies (1), and a region, consisting of the metal cord and the adhesive layer having the projecting portion, has a cross-sectional shape that has a portion that is narrower in width than a portion at which the metal cords are disposed. 
     
     
         3 . The metal-resin composite member for a tire according to  claim 1 , wherein the metal-resin composite member satisfies (1), the metal cords include a metal cord A and a metal cord B that are adjacent to each other, an adhesive layer disposed on metal cord A has a cross-sectional shape that has a projecting portion that projects toward metal cord B, and an adhesive layer disposed on metal cord B has a cross-sectional shape that has a projecting portion that projects toward metal cord A. 
     
     
         4 . The metal-resin composite member for a tire according to  claim 1 , wherein the metal-resin composite member satisfies (2), and the region consisting of the plural metal cords and the adhesive layer has a cross-sectional shape that has, between the metal cords, a portion that is narrower in width than a diameter of a section of the metal cords. 
     
     
         5 . The metal-resin composite member for a tire according to  claim 1 , wherein the adhesive layer comprises a thermoplastic resin. 
     
     
         6 . The metal-resin composite member for a tire according to  claim 1 , wherein the resin layer comprises a thermoplastic elastomer. 
     
     
         7 . The metal-resin composite member for a tire according to  claim 1 , wherein the resin layer comprises at least one selected from the group consisting of a polyamide thermoplastic elastomer (TPA) and a polyester thermoplastic elastomer (TPC). 
     
     
         8 . The metal-resin composite member for a tire according to  claim 1 , wherein the resin layer comprises a polyamide thermoplastic elastomer (TPA), and the adhesive layer comprises an acid-modified polyolefin resin. 
     
     
         9 . The metal-resin composite member for a tire according to  claim 1 , wherein the resin layer comprises a polyester thermoplastic elastomer (TPC), and the adhesive layer comprises a modified polyester resin. 
     
     
         10 . The metal-resin composite member for a tire according to  claim 2 , wherein the metal-resin composite member satisfies (1), the metal cords include a metal cord A and a metal cord B that are adjacent to each other, an adhesive layer disposed on metal cord A has a cross-sectional shape that has a projecting portion that projects toward metal cord B, and an adhesive layer disposed on metal cord B has a cross-sectional shape that has a projecting portion that projects toward metal cord A. 
     
     
         11 . The metal-resin composite member for a tire according to  claim 2 , wherein the metal-resin composite member satisfies (2), and the region consisting of the plural metal cords and the adhesive layer has a cross-sectional shape that has, between the metal cords, a portion that is narrower in width than a diameter of a section of the metal cords. 
     
     
         12 . The metal-resin composite member for a tire according to  claim 2 , wherein the adhesive layer comprises a thermoplastic resin. 
     
     
         13 . The metal-resin composite member for a tire according to  claim 2 , wherein the resin layer comprises a thermoplastic elastomer. 
     
     
         14 . The metal-resin composite member for a tire according to  claim 2 , wherein the resin layer comprises at least one selected from the group consisting of a polyamide thermoplastic elastomer (TPA) and a polyester thermoplastic elastomer (TPC). 
     
     
         15 . The metal-resin composite member for a tire according to  claim 2 , wherein the resin layer comprises a polyamide thermoplastic elastomer (TPA), and the adhesive layer comprises an acid-modified polyolefin resin. 
     
     
         16 . The metal-resin composite member for a tire according to  claim 2 , wherein the resin layer comprises a polyester thermoplastic elastomer (TPC), and the adhesive layer comprises a modified polyester resin. 
     
     
         17 . A tire comprising a tire frame and the metal-resin composite member for a tire according to  claim 1 . 
     
     
         18 . The tire according to  claim 17 , wherein the metal-resin composite member for a tire is disposed as a reinforcing member. 
     
     
         19 . The tire according to  claim 18 , wherein the reinforcing member is a belt member. 
     
     
         20 . The tire according to  claim 17 , wherein the metal-resin composite member for a tire is a bead member.